Hi Guys....I am facing decrypting a binary file which is encrypted

I am facing decrypting a binary file which is encrypted in C++ code. They use FULL RSA Service provider
wiht MD5 , TripleDES algorithms....i did the same in java to decrypt the file..but i am getting padding exception
javax.crypto.BadPaddingException: Given final block not properly padded
I am new to this group and topic...Anyhelp is greately appreciated..
C++ windows inbuilt methods for your idea to know what they use..
CryptAcquireContext (&hProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)
CryptGenKey (hProv, CALG_3DES, CRYPT_EXPORTABLE, &hKey))
CryptGetUserKey (hProv, AT_KEYEXCHANGE, &hXchgKey))
CryptGenKey(hProv,AT_KEYEXCHANGE,NULL,&hXchgKey))
CryptExportKey (hKey, hXchgKey, SIMPLEBLOB, 0, pbKeyBlob, &dwKeyBlobLen))
CryptEncrypt(hKey, 0, endOfData, 0, pData, dataLength, *bufSize))
please tell me how to implemnet the same in java...
Thanks in advance,
shyam
Edited by: MuppidiJava on Dec 11, 2008 3:44 PM

Try a cryptography forum
http://forums.sun.com/forum.jspa?forumID=9

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    5124_update.vi ‏157 KB

    Thank you so much for your reply, David. Let me try and explain my
    situation and setup a little better, as well as discuss the points you
    made in your reply. Beware, you may want to refill your coffee as this
    post is long .
    I am using an embedded controller in a PXI-1044 chassis. I now have the
    chassis hooked up to our local network, and I am deploying my project
    to the chassis over the network as I am also connected to the local
    network. I have an oscilloscope next to me that takes as input the
    pulse train for a trigger and the generated sawtooth from the niFGEN
    for each trigger (rising edge of the pulse train from the 6602
    counter). Just to make sure synchronization is taking place, the
    sawtooth is also fed as input to the niSCOPE for acquisition.
    "PXI2" is what shows up when I choose to run a VI on the PXI chassis
    rather than "My Computer"; not sure why the 2 is there either, but that
    is what it says. I may have tracked down the issue I was having with
    writing, but more about that a little later...
    The attached VI is an update, although not much has changed. My
    application design is like this (keep in mind that some values for VI's
    are still constants in the block diagram while others are controls on
    the front panel): I am using the 6602 to generate a 1 KHz pulse train
    and routing this pulse train to PXI_Trigger0/RTSI0. I am also using the
    PXI_Clock (10) as a sample clock for this, and also using this same
    clock as the reference clock for both the 5422 and the 5124 (as per the
    synchronization help file mentioned for synchronizing multiple
    devices). Both the 5422 and the 5124 are triggered by a digital rising
    edge (from the pulse train) on PXI_Trigger0/RTSI0 (as it was routed
    there). For each trigger, the niFGEN generates a sawtooth waveform
    using a stepped trigger mode and outputs it. For each trigger, the
    niSCOPE acquires data. They are both synchronous, which is tough to see
    since one has its trigger source on the front panel and the other has
    its trigger source on the block diagram. All devices use PXI_Clock so
    they are synchronized.
    The expected behavior is to only generate a single sawtooth waveform
    per trigger with a certain number of sample points. I want to acquire
    the same number of samples using the niSCOPE, which is what I meant by
    "the extent of the waveform" in my previous post. So, should I change
    the 8192 to 1000 for the number of samples for the niSCOPE? What would
    you recommend for the sampling rate? I have been using 5 MHz for the
    niFGEN and 5 MHz for the niSCOPE...this is how it should be done,
    correct? If it is different in the VI, please let me know. For some
    reason, I have to adjust all of the values each time I open it since
    the default values are not the ones I want.
    I want to generate and acquire one waveform per trigger (one waveform
    per record). However, I want to be able to record a large number of
    records so I have enabled the circular buffer-like treatment of the
    acquired waveforms. The 100 or 1000 records is actually just a number I
    am giving it for now to make sure it is working before recording many
    more records.
    As for saving the niSCOPE data, I would like to save all data in a
    single file that is NOT ascii (to save space). I have been looking at
    the HWS file format, and would like to use it. I think the attached VI
    includes this at the bottom of the while loop. For each trigger, I
    would like to save the time (as accurate as possible) that the trigger
    occurred for the record/waveform, which appears to be (absoluteInitialX
    - relativeInitialX) as you said in your post (thanks!). I just need to
    store as much information about the waveform and time information for
    it as possible with the waveform in the file. So it looks like I will
    need to use the wfm info for that information, providing portions of it
    as waveform attributes in the HWS VI's?
    What format of data do you recommend I fetch, and will I be fetching a
    "Single waveform" or "Multiple waveforms"? Should I use I32, DBL, WDT,
    or other for the format? A balance between good precision in values and
    time it takes to fetch/record would be best.
    Given all of the above, I am having one troube with saving data to a
    file. As a reminder, I am deploying the project to the chassis over the
    network. When I choose a location and/or file to save the HWS data to,
    I only get choices that are on the PC's hard disk (such as C:\Documents
    and Settings\cgifford\...) NOT the chassis's hard disk. When I choose
    something other than "C:\" I get an error that the file could not be
    opened. However, when I choose "C:\" everything goes fine. The saved
    data is nowhere to be found on my PC though, so I am assuming that it
    is being stored on the internal 60G hard disk in the chassis that must
    be named "C" by default or something!?
    I have been told by phone support that I should be able to make a
    direct connection with the chassis just like another PC, and should be
    able to access the information on its internal hard disk in a drag and
    drop fashion. I however cannot directly connect to the PXI chassis to
    get the data that has been saved on the hard disk. We are running
    Windows XP on the PC. We did some poking around and noticed that the
    chassis is not running Windows file sharing, and only has ftp and http
    running. We tried to access it using ftp, but we didn't have a username
    and password to supply it. So, how can we enable Windows file sharing
    on the chassis? How can I connect to it to do drag and drop to get
    saved waveform data off of it? This is the main problem I am now
    facing. Eventually we would like to store data to an external hard disk
    connected to the chassis, which assumes that I can have access to the
    internal storage to tell it to save files to the external hard disk.
    For now saving it to the internal hard disk is just fine until
    everything is proven to work, but I would like to get the data off of
    the internal hard drive to put on another computer.
    Any answers/suggestions on my above questions are greatly appreciated.
    I also want to thank you for reading this long post . I eagerly await
    a reply. Thanks again in advance.
    Chris
    Attachments:
    5124_update.vi ‏143 KB

  • Command not found on running binary files.

    I have a very strange problem with my new arch installation, which I never faced on other linux installations/distros.
    I'm trying to execute binary files from android-sdk, which I have them from other distros and always worked, and I get always "command not found" message. For e.g I tried to run adb(5 different files from different places), from terminal and from the folder in which is each and all times I get "command not found" message.
    Some other work though, as eclipse binary. All files I've tried worked fine, and also work fine if I run them from Ubuntu installation.
    I had this problem and for some newly isntalled packages too, as packagkit, and rutorrent. Packagekit worked after a reboot, but rutorrent gives same message.
    Any help?

    user-arch@archusrpc /home/@solushome/user-solus/QtADB-cwm_edition $ QtADB
    bash: QtADB: command not found
    user-arch@archusrpc /home/@solushome/user-solus/QtADB-cwm_edition $ ./QtADBbash: ./QtADB: No such file or directory
    user-arch@archusrpc /home/@solushome/user-solus/QtADB-cwm_edition $ sh ./QtADB
    ./QtADB: ./QtADB: cannot execute binary file
    user-arch@archusrpc /home/@solushome/user-solus/QtADB-cwm_edition $ sh QtADB
    QtADB: QtADB: cannot execute binary file
    user-arch@archusrxpc /home/@solushome/user-solus/QtADB-cwm_edition $ ls -l
    σύνολο 2940
    -rw-rw-r-- 1 user-arch 1000    5259 Απρ  13  2012 Changes.txt
    -rw-rw-r-- 1 user-arch 1000   25330 Ιούν 26  2012 debug.log
    -rwxrwxr-x 1 user-arch 1000 2970612 Απρ  13  2012 QtADB
    drwxr-xr-x 1 user-arch 1000       0 Ιούν 26  2012 tmp
    drwxrwxr-x 1 user-arch 1000     366 Μάρ  13  2012 tools
    user-arch@archusrpc /home/@solushome/user-solus/QtADB-cwm_edition $
    Last edited by dancer69 (2013-01-17 18:30:23)

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